<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
     function Star(uname, age, sex){
         this.uname = uname;
         this.age = age;
         this.sex = sex;
     }
     var ldh = new Star('刘德华', 18, '男');
    console.log(ldh.uname);
    console.log(ldh['age'])
    </script>
</body>
</html>